Michigan uses its own Child Support Formula (MCSF), currently the 2025 edition, applying the General Care Equation with a continuous parental-time offset rather than fixed custody bands. Monthly net income is calculated per MCSF chapter 2, and a low-income transition softens the formula for lower earners. Health and child-care cost additions aren’t yet computed in this calculator’s first version.
Key facts
| Model | 2025 Michigan Child Support Formula (MCSF), General Care Equation |
|---|---|
| Parental-time offset | Continuous, not banded |
| Income basis | Monthly net income per MCSF ch. 2 |
| Not yet computed | Health/child-care additions (v1) |
Official source: https://courts.michigan.gov/mcsf
Custody arrangements covered
- General Care Equation with a continuous parental-time offset scaling by overnights
- Low-income transition for lower-earning parents
Frequently asked questions
What formula does Michigan use for child support?
The Michigan Child Support Formula (MCSF), currently the 2025 edition, using the General Care Equation.
How does Michigan adjust for parenting time?
Through a continuous parental-time offset that scales with overnights, rather than fixed custody categories.
What income does Michigan use?
Monthly net income, calculated per MCSF chapter 2.
What does this Michigan calculator not yet include?
Health insurance and child-care cost additions are not computed in this first version.
Update history
- — Michigan went live under the 2025 Michigan Child Support Formula, using the General Care Equation with the continuous parental-time offset and low-income transition on monthly net income. Health and child-care add-ons are not yet computed in this version.